The "Most Strengthens" and "Most Weakens" Question Types

LNAT Section A frequently asks you to identify the option that most strengthens or most weakens an argument. These questions are among the most challenging because every option may have some relevance to the argument — your task is to rank them by their logical impact and select the one with the greatest effect. This lesson teaches you the specific techniques for handling these question types reliably.

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Why "Most" Matters

The word "most" is crucial. LNAT "most strengthens" and "most weakens" questions are designed so that:

• Multiple options may be relevant — perhaps two or three options bear on the argument
• Only one option has the greatest impact — it targets the argument's core logic most directly
• Distractor options are partially relevant — they address peripheral issues, related but distinct points, or weaker aspects of the argument

Key Principle: The best answer is not simply one that is relevant — it is the one that has the greatest logical impact on the connection between premises and conclusion.

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A Hierarchy of Impact

When evaluating options, think in terms of a hierarchy: